Theories about the sound's origins included an undiscovered sea creature. By 2011, NOAA scientists concluded the sound was the cracking of an ice shelf during an icequake. In the summer of 1997, ...
Green Matters on MSN
The Ocean Has a Leak: Scientist Accidentally Spotted Bubbles Rising From a Hole Deep Inside the Pacific
Although bubbles on the ocean floor usually indicate hydrothermal vents teeming with life, this spring stands apart.
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